G11B 20/00608
Wherein the material that the record carrier is made of is altered
Official title: {wherein the material that the record carrier is made of is altered, e.g. adding reactive dyes that alter the optical properties of a disc after prolonged exposure to light or air}
G11B20/00608 (Wherein the material that the record carrier is made of is altered) appears on 57 US grants and 102 published applications in this corpus.
Search patents in G11B- Granted patents
- 57
- Published applications
- 102
- Assignees
- 31
- Inventors
- 131
- Latest grant
- 30 Dec 2014
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 3 | 3 |
| 2003 | 3 | 9 |
| 2004 | 3 | 8 |
| 2005 | 3 | 8 |
| 2006 | 1 | 15 |
| 2007 | 6 | 24 |
| 2008 | 7 | 14 |
| 2009 | 3 | 11 |
| 2010 | 7 | 4 |
| 2011 | 3 | 3 |
| 2012 | 8 | 0 |
| 2013 | 4 | 2 |
| 2014 | 4 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Optically variable device mastering system, method of authenticating articles employing the same, and resultant article30 Dec 2014US 8,921,011 B23dcd, L.L.C.
- Optical disc with a theft deterrent coating9 Sep 2014US 8,830,806 B2Warner Bros. Entertainment Inc.
- Copy protection method for optical storage device22 Apr 2014US 8,705,326 B2
- Limited play optical article4 Feb 2014US 8,646,106 B2NBCUniversal Media, LLC
- Activation system and method for activating an optical article25 Jun 2013US 8,473,974 B2NBCUniversal Media, LLC
- Copy protection method for optical storage device19 Dec 2013US 2013/0336102 A1
- Optically variable device mastering system, method of authenticating articles employing the same, and resultant article12 Sep 2013US 2013/0234364 A13dcd, L.L.C.
- Authenticatable articles and methods therefor11 Aug 2011US 2011/0196075 A1Sabic Innovative Plastics IP B.V.
- Method and system for rotational control of data storage devices28 Jul 2011US 2011/0181981 A1Searete LLC, a limited liability corporation of the State of Delaware
- Deterring theft of optical media9 Jun 2011US 2011/0134734 A1Sony Corporation
Most cited
By later US patents
- Machine-readable optical disc with reading-inhibit agent98US 6,011,772 ASpectraDisc Corporation · 2000
- Copy-protected optical media and method of manufacture thereof75US 6,589,626 B2Verification Technologies, Inc. · 2003
- Methods and apparatus for rendering an optically encoded medium unreadable and tamper-resistant68US 6,780,564 B2Flexplay Technologies, Inc. · 2004
- Limited play optical devices with interstitial reactive layer and methods of making same55US 6,756,103 B2Flexplay Technologies, Inc. · 2004
- Machine-readable optical disc with reading-inhibit agent45US 6,434,109 B1SpectraDisc Corporation · 2002